FrameAllocator.h

#pragma once
 
#include <Foundation/Memory/LinearAllocator.h>
 
class PL_FOUNDATION_DLL plDoubleBufferedLinearAllocator
{
public:
#if PL_ENABLED(PL_COMPILE_FOR_DEBUG)
  static constexpr bool OverwriteMemoryOnReset = true;
#else
  static constexpr bool OverwriteMemoryOnReset = false;
#endif
  using StackAllocatorType = plLinearAllocator<plAllocatorTrackingMode::Basics, OverwriteMemoryOnReset>;
 
  plDoubleBufferedLinearAllocator(plStringView sName, plAllocator* pParent);
  ~plDoubleBufferedLinearAllocator();
 
  PL_ALWAYS_INLINE plAllocator* GetCurrentAllocator() const { return m_pCurrentAllocator; }
 
  void Swap();
  void Reset();
 
private:
  StackAllocatorType* m_pCurrentAllocator;
  StackAllocatorType* m_pOtherAllocator;
};
 
class PL_FOUNDATION_DLL plFrameAllocator
{
public:
  PL_ALWAYS_INLINE static plAllocator* GetCurrentAllocator() { return s_pAllocator->GetCurrentAllocator(); }
 
  static void Swap();
  static void Reset();
 
private:
  PL_MAKE_SUBSYSTEM_STARTUP_FRIEND(Foundation, FrameAllocator);
 
  static void Startup();
  static void Shutdown();
 
  static plDoubleBufferedLinearAllocator* s_pAllocator;
};